<template>
	<!-- 登录页面的整体盒子 -->
	<div class="login-container">
		<!-- 登录的盒子 -->
		<div class="login-box">
			<!-- 标题的盒子 -->
			<div class="title-box"></div>
			<!-- 登录的表单区域 -->
			<el-form :model="loginForm" :rules="loginRules" ref="loginRef">
				<!-- 用户名 -->
				<el-form-item prop="username">
					<el-input
						v-model="loginForm.username"
						placeholder="请输入用户名"
						maxlength="10"
						minlength="1"></el-input>
				</el-form-item>
				<!-- 密码 -->
				<el-form-item prop="password">
					<el-input
						v-model="loginForm.password"
						type="password"
						placeholder="请输入密码"
						maxlength="15"
						minlength="6"></el-input>
				</el-form-item>
				<el-form-item>
					<el-button type="primary" class="btn-login" @click="loginFn">登录</el-button>
					<el-link type="info" @click="$router.push('/reg')" :underline="false">去注册</el-link>
				</el-form-item>
			</el-form>
		</div>
	</div>
</template>

<script>
import { loginAPI } from '@/api'
import { mapMutations } from 'vuex'

export default {
	name: 'my-login',
	data() {
		return {
			// 登录表单的数据对象
			loginForm: {
				username: '',
				password: ''
			},
			// 登录表单的验证规则对象
			loginRules: {
				username: [
					{ required: true, message: '请输入用户名', trigger: 'blur' },
					{
						pattern: /^[a-zA-Z0-9]{1,10}$/,
						message: '用户名必须是1-10的字母数字',
						trigger: 'blur'
					}
				],
				password: [
					{ required: true, message: '请输入密码', trigger: 'blur' },
					{
						pattern: /^\S{6,15}$/,
						message: '密码必须是6-15的非空字符',
						trigger: 'blur'
					}
				]
			}
		}
	},
    methods: {
        ...mapMutations(['updateToken']),
        loginFn() {
            this.$refs.loginRef.validate( async valid => {
                if (!valid) return
                const {data: res} = await loginAPI(this.loginForm)
                if(res.code !== 0) return this.$message.error(res.message)
                this.$message.success(res.message)
                this.updateToken(res.token)
				this.$router.push('/')
            })
        }
    }
}
</script>

<style lang="less" scoped>
.login-container {
	background: url('../../assets/images/login_bg.jpg') center;
	background-size: cover;
	height: 100%;

	.login-box {
		width: 400px;
		height: 270px;
		background-color: #fff;
		border-radius: 3px;
		position: absolute;
		left: 50%;
		top: 50%;
		transform: translate(-50%, -50%);
		padding: 0 30px;
		box-sizing: border-box;

		.title-box {
			height: 60px;
			background: url('../../assets/images/login_title.png') center no-repeat;
		}

		.btn-login {
			width: 100%;
		}
	}
}
</style>
